The hydraulic cylinder plays an important role in lifting, pushing and supporting objects. The precautions for using the hydraulic cylinder are listed as follows:
1. During the use of the hydraulic cylinder, the hydraulic oil shall be replaced regularly, and the filter screen of the system shall be cleaned to ensure its cleanness, so as to extend the service life of the hydraulic cylinder.
2. Each time the hydraulic cylinder is used, it is required to conduct a full extension and full contraction test run for 5 strokes and then carry out the load operation. Why do you do this? Because it can exhaust the air in the system and preheat the systems, it can effectively avoid the existence of air or water in the system, causing gas explosion (or scorch) in the cylinder block of the hydraulic cylinder, which will damage the seals and cause the internal leakage of the cylinder and other faults.
3. Control the system temperature well. If the oil temperature is too high, the service life of the seal will be reduced. If the oil temperature is too high for a long time, the seal will have permanent deformation or even complete failure.
4. Protect the outer surface of the piston rod to prevent the damage to the seal caused by collision and scratch. Clean the sand on the sealing dust ring of the oil cylinder and the exposed piston rod frequently to prevent the dirt that is not easy to clean sticking on the surface of the piston rod from entering the inner part of the oil cylinder and damaging the piston, cylinder or seal.
5. Check the connection parts of each thread, bolt, etc. regularly, and fasten them in time in case of looseness.
6. Regularly lubricate the connection parts to prevent corrosion or abnormal wear under oil-free condition.

Precautions for using the hydraulic cylinder
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